Abstract: According to one embodiment, a wireless base station includes a transmitter and a receiver. The transmitter transmits a control signal and one or more operation signals to the second wireless communication terminal. The control signal instructs to transmit a signal that requests terminal-to-terminal communication between a first wireless communication terminal and the second wireless communication terminal. The operation signals are used for operating at least a part of the first wireless communication terminal. The receiver is capable of receiving at least one of a response signal or a data signal transmitted from the first wireless communication terminal to the second wireless communication terminal after the operation signals are transmitted.

Abstract: According to one embodiment, a wireless communication device includes a receiver configured to receive a plurality of first frames which are transmitted by multiplexing; and a transmitter configured to transmit a second frame containing check results indicating whether the plurality of first frames are successfully received and first information specifying at least one wireless communication device. The receiver is configured to receive a plurality of third frames transmitted by multiplexing in response to the second frame.

Abstract: A cleaning robot (1) which is an autonomous mobile system performs coordinate conversion of three-dimensional coordinate data acquired by measurement in a distance image sensor (20) which is arranged in a frontward and obliquely downward direction to generate three-dimensional coordinate data of a floor surface reference. Labels are applied to this data by judging a level difference or an obstacle according to height from a floor surface (F) to create overhead view image data seen from directly above a cleaning robot main body. The overhead view image data is scanned, and only when the labels are arranged in a specific order, processing for substituting an unspecified area with a level difference is performed. Thereby, positional deviation of an edge of the level difference, which is caused by a blind spot, is corrected and a position of the level difference is able to be grasped accurately.

Abstract: A cleaning robot (1) which is an autonomous mobile system performs coordinate conversion of three-dimensional coordinate data acquired by measurement in a distance image sensor (20) which is arranged in a frontward and obliquely downward direction to generate three-dimensional coordinate data of a floor surface reference. Labels are applied to this data by judging a level difference or an obstacle according to height from a floor surface (F) to create overhead view image data seen from directly above a cleaning robot main body. The overhead view image data is scanned, and only when the labels are arranged in a specific order, processing for substituting an unspecified area with a level difference is performed. Thereby, positional deviation of an edge of the level difference, which is caused by a blind spot, is corrected and a position of the level difference is able to be grasped accurately.

Abstract: A light receiving device includes a frame 1, and a light-receiving element 2 placed on one surface side of the frame 1. The other surface of the light-receiving element 2 opposite to the frame 1 side, as well as the frame 1, are grounded. Thus, the GND potential is present on the one surface side of the light-receiving element 2, while the other surface of the light-receiving element 2 is also of the GND potential. Consequently, there is provided a light receiving device being small-sized and having an effective noise shielding effect as well as high heat radiation property.

Abstract: An optical transmission controller includes a semiconductor-laser, a semiconductor laser driver, a monitor photoreceptor, a waveform detector and a phase relation adjuster. The semiconductor laser driver allows the semiconductor laser to output an optical signal. The monitor photoreceptor monitors the optical signal output. The waveform detector detects a fall state of the optical signal output. The phase relation adjuster adjusts a phase relation between a fall timing of an input current and a variation timing of a relaxation oscillation of the optical signal output in accordance with a detection result of the waveform detector.

Abstract: In an optical recording medium of the present invention, plural pits which carry main information recorded in a user area and tangential push/pull (T-PP) information required for reproducing the main information recorded in T-PP area are formed. The pit length in a track direction is formed according to the main information, and the pit depth is formed according to the T-PP information, and copyright protection information by digital watermarking is embedded in the main information. Also, if the optical disk by unauthorized copying is loaded, a reproducing apparatus restricts the reproduction thereof.

Abstract: A CPU detects the available space A of a first recording medium, the available space B of a second recording medium and a preprogrammed image information amount C necessary for preprogrammed recording by first and second recording medium space managing portions and the contents of preprogrammed recording input from an operation portion by the user. When the preprogrammed image information amount C is larger than the available space A of the first recording medium, an amount of shortage in recording space for preprogrammed information D is obtained from the CPU by subtracting the available space A of the first recording medium from the preprogrammed image information amount C. A larger amount of image information than the recording space shortage D is selected from the image information stored on the first recording medium, and the selected image information is moved to the second recording medium.

Abstract: An image recording apparatus includes a reference clock signal generating unit which generates a reference clock signal; a light beam generating unit which generates a plurality of light beams; a beam detect sensor which detects the plurality of generated light beams to output a plurality of light beam detection signals; an image clock signal. generating unit responding to the reference clock signal and the plurality of light beam detection signals to successively generate a plurality of image clock signals. These clock signals have the same period, and correspond to the plurality of light beam detection signals.

Abstract: In an optical recording medium of the present invention, plural pits which carry main information recorded in a user area and tangential push/pull (T-PP) information required for reproducing the main information recorded in T-PP area are formed. The pit length in a track direction is formed according to the main information, and the pit depth is formed according to the T-PP information, and copyright protection information by digital watermarking is embedded in the main information. Also, if the optical disk by unauthorized copying is loaded, a reproducing apparatus restricts the reproduction thereof.

Abstract: A CPU detects the available space A of a first recording medium, the available space B of a second recording medium and a preprogrammed image information amount C necessary for preprogrammed recording by first and second recording medium space managing portions and the contents of preprogrammed recording input from an operation portion by the user. When the preprogrammed image information amount C is larger than the available space A of the first recording medium, an amount of shortage in recording space for preprogrammed information D is obtained from the CPU by subtracting the available space A of the first recording medium from the preprogrammed image information amount C. A larger amount of image information than the recording space shortage D is selected from the image information stored on the first recording medium, and the selected image information is moved to the second recording medium.

Abstract: A light beam deflection scanner includes a plural number of semiconductor laser beam elements which are correctable so that they emit beams having an amount of light equal to each other. A light amount correcting circuit in the light beam deflection scanner, effects a correcting process comprising the steps of: emitting a light beam with a predetermined voltage applied to one semiconductor laser beam element; measuring a recovery time from when the light beam detecting sensor detects the light beam until the output voltage from the light beam detecting sensor returns to a predetermined level of voltage, and correcting the light amount of the light beam of the semiconductor laser beam element based on the recovery time.

Abstract: A sheet registration apparatus for registering sheets all at one time by regulating them at a reference position on the side of the sheet transport direction and on the side perpendicular to the sheet transport side. The sheet registration apparatus comprises: a regulation plate for regulating the side of the sheets perpendicular to the discharge direction (or transport direction) thereof with respect to sort bins for receiving the sheets which have been imaged by an image forming apparatus; and a reference wall for regulating the side of the sheets in the transport direction. On the other hand, a registration rod, as extended through inclined openings formed in the sort bins, are moved toward the regulation plate and turned to the direction to feed the sheets toward the reference wall, so that the sheets are registered while being regulated by the regulation plate and the reference wall in accordance with the movement for the registration of the registration rod.

Abstract: An image forming apparatus of the invention includes: a sheet-type determining device which determines whether the fed sheet is of plain paper or of OHP film; a first timer which sets up the arrival timing of the sheet for the high-speed mode; a second timer which sets up the arrival timing of the sheet for the low-speed mode; a selecting device which selects the first timer when the type of the sheet determined by the sheet-type determining device is plain paper and selects the second timer in the case of OHP film; and a warning device which, if in either of the modes, the sheet does not reach a predetermined site within the predetermined arrival time, determines that the sheet has jammed and informs the user of the point of jamming.

Abstract: A copy material feeding device in accordance with the present invention includes at least one rotatable cassette having a copy material orientation changing device for shifting copy material thereon in at least two feeding positions from which the copy paper is fed; and at least one fixed cassette without the copy material orientation changing device. The feeding device has an arrangement wherein the rotatable cassette is disposed in such a position that a transport path from the rotatable cassette to the copying apparatus is allowed to be shorter than that from the fixed cassette to the copying apparatus. Accordingly, with respect to copy paper of a predetermined size stored in the rotatable cassette, both lateral and longitudinal feeds are performed by way of the shortest transport path, that is, in a minimized transport time, and therefore the arrangement permits the copy paper to be transported to the copying machine at high speeds.

Abstract: A feeding device for enabling continuous copy paper feed from a first and second cassette. When copy material of the same size is stored in a first cassette and an absence of copy material is detected in the first cassette, orientation of the second rotatable cassette is altered, if necessary to coincide with that of the first cassette, and paper feed continues from the second rotatable cassette. Still further, the second rotatable cassette may be selected for continuing copy paper feed if copy material within the first cassette is detected to be less than a predetermined amount.

Abstract: A sheet feeding device, includes a lift down sensor for detecting a rotating plate of a rotatable cassette lowered down to a planar position, a lift up sensor for detecting the rotating plate lifted up to a sheet feeding position, a lateral feed position detecting sensor for detecting the rotatable cassette situated in the lateral feeding position, a longitudinal feed position detecting sensor for detecting the rotatable cassette situated in the longitudinal feeding position, and control means for controlling the drive mechanisms of the sheet feeding device. In the rotating operation of the rotatable cassette, if the lift down sensor is not turned on, the rotating plate is lowered so as to turn on the lift down sensor, thereafter the rotatable cassette is rotated to the predetermined longitudinal or lateral feeding position, and after the lateral or longitudinal feed position detecting sensor is turned on, the rotating plate is lifted up until the lift up sensor is turned on.

Abstract: An electronic photo-copying apparatus in accordance with the present invention comprises: at least one paper feed device comprising a paper feed cassette rotatably supported so as to move in the feeding direction thereof interchangeably between the longitudinal and lateral directions and a driving device for rotating the paper feed unit; and, a control device for controlling the paper feed device so as to permit it to switch the feeding direction of copy paper interchangeably between the longitudinal and lateral feeding directions by rotating the paper feed device by the driving device regardless of operation conditions of an electronic photo-copying apparatus main body.

Abstract: A feeding device comprises lateral and longitudinal feed position sensors for detecting that a rotatable cassette is placed in lateral or longitudinal feed positions, respectively, and a control device for controlling a cassette rotating motor based on the input from the lateral feed position sensor or the longitudinal feed position sensor, such that the longitudinal or lateral feed positions of the rotatable cassette and a fixed cassette differ. Accordingly, a situation can be avoided where the rotatable cassette and the fixed cassette that contain copy paper sheets of the same size are placed in the same longitudinal or lateral feed direction. The time can therefore be shortened for feeding the required amount of copy paper sheets in the apparatus to which the feeding device is attached. In addition, a rotation prohibition input device can be provided for inputting to the control device an instruction prohibiting the rotation of the rotatable cassette.

Abstract: An image forming apparatus comprising rotatable cassettes rotated by cassette rotating means between a longitudinal feeding station from which paper is fed in a longitudinal direction thereof and a lateral feeding station from which paper is fed in a lateral direction thereof, wherein memory means stores a cassette rotation signal, when the cassette rotation signal is entered therein and cassette rotating means is controlled in accordance with the cassette rotation signal stored in the memory means when a cassette rotation permission signal for permitting the rotation of the rotatable cassette is generated, so that the rotatable cassette is set in a predetermined feeding station.The invention also provides an image forming apparatus capable of storing the feeding station of the rotatable cassette in the memory means and rotating the rotatable cassette to the feeding station stored in the memory means when the rotatable cassette is out of both longitudinal feeding station and lateral feeding station.